Advanced Search

The Green Industry's Resource Center

Old 05-14-2005, 12:03 AM
Magot Magot is offline
LawnSite Member
Join Date: May 2005
Location: Thurmont, MD
Posts: 5
Horse Power

I was wondering how to get the most horse power out of my twin cylinder 18 hp briggs and stration motor. I need to get as much as I can out of it. Thanks.

By the way. I figured out the wireing. thanks alot
Reply With Quote
Old 05-14-2005, 12:06 AM
LawnSite Silver Member
Join Date: Aug 2003
Location: BEREA KY
Posts: 2,138
Crank the rpm up to 4000
Reply With Quote
Old 05-14-2005, 02:27 AM
Smalltimer1's Avatar
Smalltimer1 Smalltimer1 is offline
LawnSite Bronze Member
Join Date: Sep 2004
Location: Raleigh, NC area
Posts: 1,243
Originally Posted by Turf Docter
Crank the rpm up to 4000
Those engines are designed to only withstand 10% above their max RPM momentarily any more than that or longer than that, then he'll have a rod sticking out the side. Since most newer Briggs are governed at 3600, he'd only be able to run 3960 RPM just for a few seconds, even with such a small difference, he could still blow it.

The best thing you can do is to bore out the venturi in the carb about an 1/8" and that will increase your flow of air/fuel in and then see if you can get the heads ported and polished as well as running a hotter spark plug. Just make sure you don't get one that will scorch the pistons.

2004 Ford F-250 XL RC/LB 4x2 Power Stroke Diesel
2010 John Deere Z710A 48" cut
1999 John Deere GT-235/54" deck
1985 John Deere 212 w/38" deck
1983 John Deere 420 w/54" hydraulic front blade
1974 John Deere 140, 54" hydraulic blade, 3pt. hitch, tandem disc, plow, 48" deck
1971 John Deere 112, 38" deck, all original, down for engine rebuild.
1967 IH Cub Cadet 124 w/creeper box, disc, plow
1947 Economy/Power King Tractor S/N 590, fully restored.

Certified John Deere Technician
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Layout Style:

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Grand View Media
All times are GMT -4. The time now is 10:58 AM.

Page generated in 0.06238 seconds with 8 queries